*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior:smooth; }

body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  overflow-x:hidden;
  background:#faf6f0;
  color:#2b2b28;
  line-height:1.7;
  background-image:
    radial-gradient(circle at 15% 30%, rgba(255,209,102,0.12) 0%, transparent 300px),
    radial-gradient(circle at 85% 75%, rgba(62,193,181,0.08) 0%, transparent 260px);
}

::selection { background:#ffd166; color:#2b2b28; }

::-webkit-scrollbar { width:10px; }
::-webkit-scrollbar-track { background:#f1ece2; }
::-webkit-scrollbar-thumb { background:#ff6b6b; border-radius:5px; border:2px solid #f1ece2; }

.container { max-width:1200px; margin:0 auto; padding:0 24px; }

.section { padding:80px 0; position:relative; overflow:hidden; }
.section:nth-child(even) { background:#f1ece2; }
.section::before {
  content:'';
  position:absolute;
  width:160px;
  height:160px;
  background-image:radial-gradient(rgba(255,107,107,0.14) 2px, transparent 2px);
  background-size:16px 16px;
  right:-30px;
  top:-30px;
  opacity:0.5;
  pointer-events:none;
}

/* 导航 */
.site-header {
  position:fixed;
  top:0; left:0;
  width:100%;
  z-index:1000;
  background:rgba(250,246,240,0.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:3px double #2b2b28;
}

.header-inner {
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:70px;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

.logo {
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:900;
  font-size:1.3rem;
  letter-spacing:-0.5px;
  text-decoration:none;
  color:#2b2b28;
}

.logo-icon {
  width:40px;
  height:40px;
  border-radius:50%;
  background:#ff6b6b;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:0.9rem;
  font-weight:900;
  transform:rotate(-10deg);
  box-shadow:2.5px 2.5px 0 #2b2b28;
  transition:transform 0.3s ease;
}

.logo:hover .logo-icon { transform:rotate(8deg) scale(1.05); }

.main-nav {
  display:flex;
  align-items:center;
  gap:28px;
  list-style:none;
}

.main-nav a {
  text-decoration:none;
  font-size:0.88rem;
  font-weight:700;
  color:#2b2b28;
  position:relative;
  padding:4px 0;
  transition:color 0.2s;
}

.main-nav a::after {
  content:'';
  position:absolute;
  bottom:-2px;
  left:0;
  width:0;
  height:2.5px;
  background:#ff6b6b;
  border-radius:2px;
  transition:width 0.3s cubic-bezier(0.65,0,0.35,1);
}

.main-nav a:hover::after { width:100%; }

.main-nav a.nav-cta {
  padding:9px 24px;
  border-radius:50px;
  background:#ff6b6b;
  color:#fff!important;
  box-shadow:2.5px 2.5px 0 #2b2b28;
  border:1.5px solid #2b2b28;
}

.main-nav a.nav-cta::after { display:none; }
.main-nav a.nav-cta:hover { transform:translate(1.5px,1.5px); box-shadow:1px 1px 0 #2b2b28; }

.menu-toggle {
  display:none;
  width:44px;
  height:44px;
  border:2px solid #2b2b28;
  border-radius:12px;
  background:#fffdf8;
  cursor:pointer;
  font-size:1.2rem;
  color:#2b2b28;
  align-items:center;
  justify-content:center;
  box-shadow:2px 2px 0 #2b2b28;
}

/* Hero */
.hero {
  min-height:82vh;
  display:flex;
  align-items:center;
  position:relative;
  padding-top:70px;
  background:
    radial-gradient(circle at 75% 30%, rgba(255,107,107,0.08) 0%, transparent 220px),
    radial-gradient(circle at 15% 75%, rgba(255,209,102,0.15) 0%, transparent 260px);
}

.hero::before {
  content:'';
  position:absolute;
  width:360px;
  height:360px;
  border-radius:50%;
  border:3px dashed rgba(62,193,181,0.3);
  right:-100px;
  top:-80px;
  pointer-events:none;
  animation:rotate-dash 40s linear infinite;
}

.hero::after {
  content:'';
  position:absolute;
  width:180px;
  height:180px;
  border-radius:50%;
  background-image:radial-gradient(rgba(62,193,181,0.25) 2.5px, transparent 2.5px);
  background-size:14px 14px;
  left:4%;
  bottom:15%;
  pointer-events:none;
}

@keyframes rotate-dash {
  from { transform:rotate(0deg); }
  to { transform:rotate(360deg); }
}

.hero-content {
  position:relative;
  z-index:2;
  max-width:680px;
}

.hero-eyebrow {
  display:inline-block;
  font-size:0.78rem;
  font-weight:800;
  padding:6px 20px;
  border-radius:50px;
  background:#ffd166;
  color:#2b2b28;
  margin-bottom:22px;
  transform:rotate(-2deg);
  box-shadow:2.5px 2.5px 0 #2b2b28;
  letter-spacing:1.2px;
  text-transform:uppercase;
  border:1px solid #2b2b28;
}

.hero h1 {
  font-size:clamp(2.6rem, 5.5vw, 4.4rem);
  font-weight:900;
  line-height:1.05;
  margin-bottom:24px;
  letter-spacing:-2px;
  color:#2b2b28;
}

.hero h1 .accent-text {
  position:relative;
  display:inline-block;
  color:#ff6b6b;
  white-space:nowrap;
}

.hero h1 .accent-text::after {
  content:'';
  position:absolute;
  bottom:4px;
  left:0;
  width:100%;
  height:14px;
  background:rgba(255,209,102,0.4);
  z-index:-1;
  border-radius:4px;
  transform:rotate(-1deg);
}

.hero p {
  font-size:1.08rem;
  opacity:0.7;
  max-width:560px;
  margin-bottom:36px;
  line-height:1.8;
}

.hero-buttons { display:flex; gap:16px; }

.hero-image {
  flex:1;
  border-radius:20px;
  overflow:hidden;
  border:2px solid #2b2b28;
  box-shadow:7px 7px 0 #2b2b28;
  transform:rotate(2deg);
  transition:transform 0.4s ease;
  background:#fffdf8;
}

.hero-image:hover { transform:rotate(0deg) scale(1.02); }
.hero-image img { width:100%; height:auto; display:block; }

/* 按钮 */
.btn {
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 32px;
  border-radius:50px;
  font-weight:800;
  font-size:0.92rem;
  cursor:pointer;
  border:none;
  text-decoration:none;
  transition:all 0.18s ease;
  letter-spacing:0.3px;
}

.btn-primary {
  background:#ff6b6b;
  color:#fff;
  box-shadow:3.5px 3.5px 0 #2b2b28;
  border:1.5px solid #2b2b28;
}

.btn-primary:hover {
  transform:translate(2px,2px);
  box-shadow:1.5px 1.5px 0 #2b2b28;
  background:#ff5252;
}

.btn-outline {
  background:transparent;
  border:2px solid #2b2b28;
  color:#2b2b28;
  box-shadow:3.5px 3.5px 0 #2b2b28;
}

.btn-outline:hover {
  transform:translate(2px,2px);
  box-shadow:1.5px 1.5px 0 #2b2b28;
  background:#fffdf8;
}

/* 标签/标题 */
.section-label {
  display:inline-block;
  font-size:0.72rem;
  font-weight:800;
  letter-spacing:2.5px;
  text-transform:uppercase;
  padding:6px 20px;
  background:#ffd166;
  color:#2b2b28;
  border-radius:50px;
  transform:rotate(-1.5deg);
  box-shadow:2px 2px 0 #2b2b28;
  margin-bottom:16px;
  border:1px solid #2b2b28;
  position:relative;
  z-index:1;
}

.section-title {
  font-size:clamp(2rem, 3.5vw, 3rem);
  font-weight:900;
  letter-spacing:-1.5px;
  margin-bottom:14px;
  line-height:1.12;
  color:#2b2b28;
}

.section-desc {
  max-width:620px;
  opacity:0.65;
  margin-bottom:44px;
  font-size:1.02rem;
  line-height:1.8;
}

/* 卡片网格 */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:28px;
}

.category-card {
  border-radius:14px;
  padding:30px 28px;
  border:2px solid #2b2b28;
  background:#fffdf8;
  box-shadow:4.5px 4.5px 0 #2b2b28;
  transition:all 0.22s cubic-bezier(0.34,1.56,0.64,1);
  position:relative;
}

.category-card::before {
  content:'';
  position:absolute;
  top:-9px;
  right:-9px;
  width:26px;
  height:26px;
  border-radius:50%;
  background:#ff6b6b;
  border:2px solid #2b2b28;
  box-shadow:1.5px 1.5px 0 #2b2b28;
}

.category-card:nth-child(2)::before { background:#ffd166; }
.category-card:nth-child(3)::before { background:#3ec1b5; }
.category-card:nth-child(4)::before { background:#ffd166; }

.category-card:hover {
  transform:translate(-3px,-3px);
  box-shadow:7px 7px 0 #2b2b28;
}

.card-icon {
  width:52px;
  height:52px;
  border-radius:50%;
  background:#3ec1b5;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  font-size:1.3rem;
  box-shadow:2px 2px 0 rgba(43,43,40,0.8);
  transition:transform 0.3s ease;
}

.category-card:hover .card-icon { transform:rotate(-10deg) scale(1.1); }

.card-link {
  font-weight:800;
  font-size:0.85rem;
  text-decoration:none;
  color:#2b2b28;
  display:inline-flex;
  align-items:center;
  gap:4px;
  border-bottom:2px solid #ffd166;
  padding-bottom:2px;
  transition:gap 0.2s;
}

.card-link:hover { gap:8px; color:#ff6b6b; }

/* 特性块 */
.feature-block {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}

.feature-image {
  border-radius:20px;
  overflow:hidden;
  border:2px solid #2b2b28;
  box-shadow:7px 7px 0 #3ec1b5;
  transform:rotate(-1.5deg);
  transition:all 0.35s ease;
  background:#fffdf8;
}

.feature-image:hover {
  transform:rotate(0deg) scale(1.01);
  box-shadow:5px 5px 0 #3ec1b5;
}

.feature-image img {
  width:100%;
  height:auto;
  display:block;
}

.feature-text { position:relative; }

.feature-text .section-label { margin-bottom:18px; }

.feature-list { list-style:none; margin-top:20px; }

.feature-list li {
  padding:8px 0;
  display:flex;
  align-items:center;
  gap:12px;
  font-weight:500;
  font-size:0.98rem;
}

.feature-list li::before {
  content:'✓';
  font-weight:900;
  width:22px;
  height:22px;
  background:#3ec1b5;
  color:#fff;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:11px;
  flex-shrink:0;
  border:1px solid #2b2b28;
}

/* 数据条 */
.stats-bar {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}

.stat-item {
  padding:30px 18px;
  border-radius:16px;
  border:2px solid #2b2b28;
  background:#fffdf8;
  box-shadow:4px 4px 0 #2b2b28;
  transition:all 0.2s ease;
  position:relative;
  overflow:hidden;
}

.stat-item::before {
  content:'';
  position:absolute;
  top:-30px;
  right:-30px;
  width:70px;
  height:70px;
  border-radius:50%;
  background:rgba(255,209,102,0.25);
  transition:transform 0.3s;
}

.stat-item:hover { transform:translate(-2px,-2px); box-shadow:6px 6px 0 #2b2b28; }
.stat-item:hover::before { transform:scale(1.4); }

.stat-number {
  font-size:2.4rem;
  font-weight:900;
  color:#ff6b6b;
  letter-spacing:-1px;
  position:relative;
}

.stat-label {
  font-size:0.88rem;
  opacity:0.6;
  margin-top:8px;
  font-weight:600;
  position:relative;
}

/* 内容墙 */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:28px;
}

.content-wall-item {
  border-radius:14px;
  overflow:hidden;
  border:2px solid #2b2b28;
  background:#fffdf8;
  box-shadow:3.5px 3.5px 0 #2b2b28;
  transition:all 0.2s ease;
}

.content-wall-item:nth-child(2n) { transform:rotate(0.5deg); }
.content-wall-item:nth-child(3n) { transform:rotate(-0.5deg); }

.content-wall-item:hover {
  transform:translate(-2px,-2px) rotate(0deg);
  box-shadow:6px 6px 0 #ff6b6b;
}

.content-wall-item img {
  width:100%;
  height:200px;
  object-fit:cover;
  border-bottom:2px solid #2b2b28;
  display:block;
}

.content-wall-body { padding:20px 22px; }
.content-wall-body h3 { font-size:1.05rem; font-weight:800; margin-bottom:6px; }
.content-wall-body p { font-size:0.88rem; opacity:0.6; }

/* FAQ */
.faq-list { max-width:850px; margin:0 auto; }

.faq-item {
  border:2px solid #2b2b28;
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  cursor:pointer;
  background:#fffdf8;
  transition:all 0.2s ease;
}

.faq-item.open {
  box-shadow:4.5px 4.5px 0 #ffd166;
  transform:translate(-1px,-1px);
}

.faq-item .faq-question {
  padding:18px 24px;
  font-weight:700;
  font-size:0.98rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
}

.faq-item .faq-question::after {
  content:'＋';
  font-size:1.3rem;
  color:#ff6b6b;
  font-weight:900;
  font-family:monospace;
  transition:transform 0.3s;
}

.faq-item.open .faq-question::after {
  content:'－';
  transform:rotate(180deg);
}

.faq-item .faq-answer {
  padding:0 24px 20px;
  display:none;
  opacity:0.7;
  font-size:0.93rem;
  line-height:1.8;
}

.faq-item.open .faq-answer { display:block; animation:fade-slide 0.3s ease; }

@keyframes fade-slide {
  from { opacity:0; transform:translateY(-8px); }
  to { opacity:1; transform:translateY(0); }
}

/* CTA横幅 */
.cta-banner {
  padding:64px 32px;
  text-align:center;
  border-radius:24px;
  background:#3ec1b5;
  border:2px solid #2b2b28;
  box-shadow:8px 8px 0 #ffd166;
  color:#fff;
  position:relative;
  overflow:hidden;
}

.cta-banner::before {
  content:'';
  position:absolute;
  width:180px;
  height:180px;
  border:3px solid rgba(255,255,255,0.15);
  border-radius:50%;
  top:-60px;
  right:-50px;
}

.cta-banner::after {
  content:'';
  position:absolute;
  width:100px;
  height:100px;
  background:rgba(255,255,255,0.07);
  border-radius:50%;
  bottom:-30px;
  left:40px;
}

.cta-banner h2 {
  color:#fff;
  margin-bottom:14px;
  font-weight:900;
  letter-spacing:-1px;
  font-size:2.2rem;
  position:relative;
  z-index:1;
}

.cta-banner p { margin-bottom:28px; opacity:0.9; position:relative; z-index:1; }

.cta-banner .btn-primary {
  background:#fff;
  color:#2b2b28;
  box-shadow:3px 3px 0 #2b2b28;
  border:1.5px solid #2b2b28;
  position:relative;
  z-index:1;
}

.cta-banner .btn-primary:hover { transform:translate(2px,2px); box-shadow:1px 1px 0 #2b2b28; }

/* 页脚 */
.site-footer {
  padding:60px 0 28px;
  background:#ece5da;
  color:#2b2b28;
  border-top:3px double #2b2b28;
  margin-top:20px;
}

.footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;
}

.footer-brand h4 {
  font-size:1.4rem;
  font-weight:900;
  letter-spacing:-0.5px;
  display:flex;
  align-items:center;
  gap:8px;
}

.footer-brand p { opacity:0.6; margin-top:12px; font-size:0.9rem; max-width:260px; }

.footer-col h4 { font-weight:800; margin-bottom:16px; font-size:1rem; }

.footer-col a {
  display:block;
  color:rgba(43,43,40,0.7);
  text-decoration:none;
  padding:4px 0;
  font-size:0.88rem;
  transition:all 0.2s;
}

.footer-col a:hover { color:#ff6b6b; transform:translateX(4px); }

.footer-bottom {
  border-top:1px solid rgba(43,43,40,0.15);
  margin-top:48px;
  padding-top:24px;
  text-align:center;
  font-size:0.85rem;
  opacity:0.55;
}

/* 工具类 */
.text-accent { color:#ff6b6b; }
.text-center { text-align:center; }
.seo-description { max-width:600px; margin:0 auto 48px; opacity:0.65; font-size:0.95rem; line-height:1.8; }
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* 响应式 */
@media (max-width: 992px) {
  .hero-image { display:none; }
  .hero-content { max-width:100%; }
}

@media (max-width: 768px) {
  .section { padding:60px 0; }
  .hero { min-height:65vh; text-align:center; }
  .hero-content { display:flex; flex-direction:column; align-items:center; }
  .hero h1 { font-size:2.4rem; }
  .hero p { margin-left:auto; margin-right:auto; }
  .hero-buttons { justify-content:center; }
  .feature-block { grid-template-columns:1fr; gap:40px; }
  .feature-image { max-width:400px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .main-nav { display:none; }
  .menu-toggle { display:flex; }
  .main-nav.open {
    display:flex;
    flex-direction:column;
    position:absolute;
    top:70px;
    left:0;
    width:100%;
    background:#faf6f0;
    padding:24px;
    gap:16px;
    border-bottom:2px solid #2b2b28;
    box-shadow:0 10px 30px rgba(0,0,0,0.08);
  }
  .main-nav.open a { padding:8px 0; font-size:0.95rem; }
  .main-nav.open a.nav-cta { display:inline-block; text-align:center; padding:12px 24px; }
  .cta-banner { padding:48px 20px; }
  .cta-banner h2 { font-size:1.8rem; }
}

@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .hero-buttons { flex-direction:column; width:100%; max-width:240px; }
  .hero-buttons .btn { justify-content:center; width:100%; }
  .stats-bar { gap:16px; }
  .stat-number { font-size:1.9rem; }
  .section-title { font-size:1.7rem; }
  .hero h1 { font-size:2rem; }
  .footer-col { text-align:left; }
}